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@ARTICLE{Sharma:408794,
      author       = {Sharma, Ashutosh},
      title        = {{H}igh {E}nergy electron and proton acceleration by
                      circularly polarized laser pulse from near critical density
                      hydrogen gas target},
      journal      = {Scientific reports},
      volume       = {8},
      number       = {1},
      issn         = {2045-2322},
      address      = {London},
      publisher    = {Nature Publishing Group},
      reportid     = {PUBDB-2018-03099},
      pages        = {2191},
      year         = {2018},
      abstract     = {Relativistic electron rings hold the possibility of very
                      high accelerating rates, and hopefully a relatively cheap
                      and compact accelerator/collimator for ultrahigh energy
                      proton source. In this work, we investigate the generation
                      of helical shaped quasi-monoenergetic relativistic electron
                      beam and high-energy proton beam from near critical density
                      plasmas driven by petawatt-circularly polarized-short laser
                      pulses. We numerically observe the efficient proton
                      acceleration from magnetic vortex acceleration mechanism by
                      using the three dimensional particle-in-cell simulations;
                      proton beam with peak energy 350 MeV, charge ~10nC and
                      conversion efficiency more than $6\%$ (which implies 2.4 J
                      proton beam out of the 40 J incident laser energy) is
                      reported. We detailed the microphysics involved in the ion
                      acceleration mechanism, which requires investigating the
                      role of self-generated plasma electric and magnetic fields.
                      The concept of efficient generation of quasi-monoenergetic
                      electron and proton beam from near critical density gas
                      targets may be verified experimentally at advanced high
                      power – high repetition rate laser facilities e.g.
                      ELI-ALPS. Such study should be an important step towards the
                      development of high quality electron and proton beam.},
      cin          = {Eur.XFEL},
      ddc          = {000},
      cid          = {$I:(DE-H253)Eur_XFEL-20120731$},
      pnm          = {631 - Accelerator R $\&$ D (POF3-631) / EUCALL - European
                      Cluster of Advanced Laser Light Sources (654220)},
      pid          = {G:(DE-HGF)POF3-631 / G:(EU-Grant)654220},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29391470},
      UT           = {WOS:000423787500166},
      doi          = {10.1038/s41598-018-20506-x},
      url          = {https://bib-pubdb1.desy.de/record/408794},
}